WO2015192527A1

WO2015192527A1 - Channel switching method for playing device and playing device

Info

Publication number: WO2015192527A1
Application number: PCT/CN2014/087525
Authority: WO
Inventors: 刘涛
Original assignee: 京东方科技集团股份有限公司; 北京京东方显示技术有限公司
Priority date: 2014-06-20
Filing date: 2014-09-26
Publication date: 2015-12-23
Also published as: CN104125484B; CN104125484A

Abstract

The present invention relates to a channel switching method for a playing device and the playing device. The method comprises: separately setting favorite channels corresponding to multiple first preset time periods; acquiring the current time; and when the current time is within a first preset time period of the multiple first preset time periods, or the interval between the current time and the start time of a first preset time period of the multiple first preset time periods is smaller than or equal to a preset switching period, and when a favorite channel corresponding to the first preset time period is set, switching the playing device to the favorite channel corresponding to the first preset time period, or prompting to switch to the favorite channel corresponding to the first preset time period.

Description

Method and device for switching playback device channel

Technical field

The present invention relates to a method and a playback apparatus for switching a channel of a playback device.

Background technique

At present, televisions, video recorders, set-top boxes, etc. are respectively equipped with remote controllers, and the user can operate the television, the video recorder or the set-top box through the remote controller, for example, selecting a program to play, adjusting the sound size of the broadcast program or the image quality of the broadcast program. Operations such as adjustments can be done with the remote control.

Users are often accustomed to using the remote control to select the playback channel of the TV and set-top box, at which point the user is free to choose the right channel using the TV remote control or set-top box remote control. At present, the remote control usually provides two channel selection methods: one way is to select channels in order by "+" or "-" keys, and then stop to watch when you adjust to your favorite channel; the other way is that the user has Know the channel number of the program you want to see, and directly enter the channel number by the keyboard on the remote control to select the channel. In addition, a return button is also provided on the set top box remote control, and when the return button is pressed, the channel can be directly returned from the current channel.

However, as the number of television programs increases and the number of channels increases, the user cannot remember that it is impossible to clearly remember the channel corresponding to each number. When a user wishes to switch to a certain channel, the channel can usually only be selected in order by the "+" or "-" keys; in addition, the user will want to watch programs of different channels at different time periods, by "+" or "- The "key" to select the channel is inconvenient for the user.

Therefore, providing a convenient and fast channel switching method has become a technical problem to be solved.

Summary of the invention

The invention provides a method and a playback device for switching a channel of a playback device, thereby providing a convenient and fast channel switching for the user.

According to an aspect of the present invention, a method of switching a channel of a playback device is provided, The method includes the steps of: respectively setting a favorite channel corresponding to the plurality of first preset time segments; acquiring a current time; and when the current time is within a first preset time period of the plurality of first preset time segments, Or setting the first preset time with the first preset time when the interval between the current time and the start time of the first preset time period of the plurality of first preset time periods is less than or equal to the preset switching period In the case of the favorite channel corresponding to the segment, the playback device is switched to the favorite channel corresponding to the one first preset time period, or the user is prompted to switch to the favorite channel corresponding to the one first preset time period.

According to an embodiment of the present invention, a method for setting a favorite channel corresponding to each first preset time period may include: collecting, during a second preset time period, the playback device in each of the first preset time periods a respective playing duration of the plurality of channels; in the second preset time period, accumulating the total playing duration of each channel for each of the first preset time periods, and the plurality of channels are in the first preset time period a sum of play durations within each time; for each first preset time period, calculating a percentage of time for the total play duration of each channel and the total play duration of the plurality of channels; and for each first preset time period, The channel that is within the confidence interval and has the largest percentage of time is set as the favorite channel corresponding to the first preset time period.

According to one embodiment of the invention, the confidence interval may be in the range [90%, 100%].

According to an embodiment of the present invention, the first preset time period may be less than or equal to the second preset time period, the duration of the first preset time period is t1, wherein 1 minute ≤ t1 ≤ 1 day, and the plurality of The first preset time periods do not overlap each other, and the duration of the second preset time period is t2, wherein 1 day ≤ t2 ≤ 1 year.

According to an embodiment of the invention, the preset switching period has a duration of t0, wherein 1 minute ≤ t0 ≤ 10 minutes.

According to an embodiment of the present invention, the method may further include the steps of: determining a current user of the playback device before setting the favorite channel corresponding to the plurality of first preset time periods; and setting for the current user a favorite channel corresponding to the plurality of first preset time periods.

According to an embodiment of the present invention, when the current time is within one of the plurality of first preset time periods, or one of the current time and the plurality of first preset time periods The interval of the start time of the first preset time period is less than or equal to the pre-predetermined When the switching period is set, in a case where the favorite channel corresponding to the one first preset time period is set for the current user, the playback device may be switched to the favorite channel corresponding to the one first preset time period. Or may prompt to switch to the favorite channel corresponding to the one first preset time period.

According to another aspect of the present invention, a playback apparatus is provided that includes a command unit, a time unit, a processing unit, and a storage unit. The command unit is electrically coupled to the processing unit for enabling/disabling the automatic channel switching function and for setting parameters related to the automatic channel switching function. The time unit is electrically coupled to the processing unit for providing the current time and providing the processing unit with the duration of each channel. The storage unit is electrically connected to the processing unit for storing parameters related to the automatic channel switching function, and stored in the second preset time period for playing the plurality of channels of each of the plurality of first preset time periods The duration and the favorite channel corresponding to each of the first preset time periods. The processing unit is electrically connected to the playing unit in the playing device, configured to set a favorite channel corresponding to each of the first preset time periods, and when the automatic channel switching function is enabled, the playing module is played and the first The favorite channel corresponding to the preset time period, or the prompting to switch the favorite channel corresponding to the first preset time period.

According to an embodiment of the invention, the processing unit may comprise a computing module and a judging module electrically connected to each other. The calculating module is configured to calculate, in the second preset time period, a total playing duration of the same channel in each of the first preset time periods, and a total playing time of the multiple channels in the same first preset time period, And for each of the first preset time periods, calculating a percentage of the total playing time of each channel and the total playing time of the plurality of channels. The determining module is configured to set a channel that is within a confidence interval and has a maximum time percentage as a favorite channel corresponding to the first preset time period, and send, to the storage unit, a favorite channel that stores the first preset time period. a signal, the determining module is further configured to determine whether the current time is within a first preset time period of the plurality of first preset time periods, or determine the current time and the plurality of first preset time periods Whether the interval of the start time of one of the first preset time periods is less than or equal to the preset switching period, and transmitting a signal for channel switching or a signal for prompting channel switching to the playing unit in the playback device.

According to an embodiment of the present invention, the command unit may include a receiving module and transmitting Module. The receiving module is configured to receive an enable/disable automatic channel switching command from the user and a setting of a parameter related to the automatic channel switching function, wherein the parameter may include the plurality of first preset time periods, the a second preset time period, the preset switching period, and the confidence interval. The sending module is electrically connected to the processing unit for transmitting the enable/disable automatic channel switching command received by the receiving module and the parameter related to the automatic channel switching function to the processing unit.

According to an embodiment of the present invention, the receiving module may be a remote controller corresponding to the playback device, and the remote controller is provided with a key for enabling/disabling channel switching and a setting for setting parameters related to the channel switching function. key. Alternatively, the receiving module may be a key for enabling/disabling channel switching provided on the casing of the playback device and a setting key for setting parameters related to the channel switching function.

According to an embodiment of the present invention, the playback device may further include an image acquisition unit and an image recognition unit. The image acquisition unit is electrically connected to the image recognition unit for acquiring a face image of the current user of the playback device. The image recognition unit is electrically connected to the determination module of the processing unit for identifying the current user of the playback device according to the face image acquired by the image acquisition unit.

According to an embodiment of the invention, the image acquisition unit may be a face image acquisition sensor. The facial recognition feature information may be preset in the image recognition unit, and the image recognition unit extracts the feature of the facial image acquired by the facial image acquisition sensor, and compares the extracted facial image feature with the preset facial feature information. The current user of the playback device is determined according to the matching of the face image feature and the face feature information.

The method for switching a channel of a playback device and the corresponding playback device according to the present invention provide a rule for a user to play a program by counting and analyzing the possibility that the user views each channel in each time period, and can set the program according to the law. The automatic channel selection rule is set, so that the channel can be automatically switched within the set time period, which solves the problem that the user switches channels, thereby providing convenient and fast channel switching for the user.

DRAWINGS

1 is a flow chart showing a method of switching a channel of a playback device according to the present invention;

2 is a schematic structural view of a playback apparatus according to the present invention.

Reference mark:

1-command unit; 11-receive module; 12-transmission module; 2-time unit; 3-processing unit; 31-computation module; 32-judgment module; 4-memory unit;

detailed description

In order to enable those skilled in the art to better understand the technical solutions of the present invention, the method and the playback apparatus for switching the playback device channel of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments.

1 is a flow chart showing a method of switching a channel of a playback device according to the present invention.

As shown in FIG. 1, the method for switching a channel of a playback device may include the steps of: respectively setting a favorite channel corresponding to a plurality of first preset time segments (S1); acquiring a current time (S2); and switching the playback device to and The favorite channel corresponding to the first preset time period, or the prompt is to be switched to the favorite channel corresponding to the first preset time period (S3).

The plurality of first preset time periods may be manually set, and each of the first preset time periods may be a time period during which the user views or listens to the program. In the step S1, the method for setting the favorite channel corresponding to each of the first preset time periods may include: collecting, in the second preset time period, the plurality of channels of the playback device in each of the first preset time periods. The respective playing durations (S11); in the second preset time period, the total playing duration of each channel is accumulated for each first preset time period, and the playing time of the plurality of channels in the first preset time period a sum (S12); for each of the first preset time periods, calculating a percentage of time of the total playing duration of each channel and the total playing time of the plurality of channels (S13); and for each of the first preset time periods, The channel within the confidence interval and having the largest percentage of time is set as the favorite channel corresponding to the first preset time period (S14).

Usually, the first preset time period is set to be less than or equal to the second preset time period. For example, the first preset time period may be a time period in which a certain channel is selected by the user in a shorter time period, and the second preset time period may be a time period in which a certain channel is selected by the user in a longer time period.

The first preset time period and the second preset time period may be set by the user, and the set first preset time period and the second preset time period are used for playing a certain channel. Long statistics.

According to an embodiment of the invention, the duration of the first predetermined time period is t1, wherein 1 minute ≤ t1 ≤ 1 day, such as 2 hours, 4 hours or one day. In addition, the plurality of first preset times do not overlap each other. The duration of the second predetermined time period is t2, wherein 1 day ≤ t2 ≤ 1 year, such as 7 days, 15 days or one month. By counting the duration during which the user selects to play a certain channel for a certain period of time (ie, each of the first preset time periods) for a long period of time (ie, the second preset period of time) The percentage of the total playing time of all the channels in the segment can be used to obtain the most commonly used and favorite channel of the user during the time period (ie, the first preset time period).

For example, the play durations of 6 channels (channels 1-6) in 6 different time periods (time periods 1-6) are respectively counted, and the total play duration and multiple channels of each channel in the same time period are calculated. The sum of the playback durations during the first preset time period. As shown in Table 1 below, the columns 2 to 7 are the total playing time of each channel 1-6 in time period 1-6, and the last column (column 8) is all channels 1-6 in a certain first. The sum of the playback durations in the preset time period.

Table 1

On the basis of Table 1, the playback durations of 6 channels (channels 1-6) in 6 different time periods (time periods 1-6) are analyzed separately, and the total playback duration of each channel in each time period is calculated. The percentage of time that the multiple channels play the total of the duration of the time period. Table 2 shows the calculation results:

Table 2

According to one embodiment of the invention, the confidence interval ranges from [90%, 100%]. Referring to Table 2, within the range of the confidence interval, the favorite channel corresponding to time period 2 can be set to channel 2, the favorite channel corresponding to time period 3 can be set to channel 3, and the preference corresponding to time period 5 can be set. The channel is set to channel 5, and the favorite channel corresponding to time period 6 is set to channel 6, since there is a maximum time percentage of 83.2% of channel 1 in time period 1 and the largest percentage of time in time period 4 69.8% of the channels 4 are not within the confidence interval, so the favorite channels corresponding to the time period 1 and the time period 4 are not set.

Of course, according to another embodiment of the present invention, the set favorite channel may not be directly stored, but the percentage of time of the plurality of channels in the first preset time period may be stored. When the automatic switching to the favorite channel is invoked, the channel that is in the confidence interval range and has the largest percentage of time in the first preset time period (ie, the favorite channel corresponding to the first preset time period) is first searched, and then automatically switched to The channel or prompt will switch to that channel.

According to an embodiment of the present invention, the favorite channel corresponding to the first preset time period may be periodically detected or queried according to a preset switching period. For example, after the display device is powered on, a detection or inquiry is performed every preset switching period. If there is a favorite channel corresponding to the first preset time period, the playing device automatically switches the channel to the favorite channel or prompts to switch to the favorite channel corresponding to the first preset time period.

The preset switching period is equivalent to the inquiry period of the playback device. The duration of the preset switching period may be less than the duration of the first preset time period. The duration of the preset switching period is t0, where 1 point ≤ t0 ≤ 10 minutes, for example 2 minutes. The user can set a preset switching period according to his or her habits or preferences.

2 is a schematic structural view of a playback apparatus according to the present invention. The playback device according to an embodiment of the present invention may be a display device, or may be a device having a playback function such as a radio.

As shown in FIG. 2, the playback apparatus includes a command unit 1, a time unit 2, a processing unit 3, and a storage unit 4. The command unit 1 is electrically connected to the processing unit 3 and serves as a user interface for enabling/disabling the automatic channel switching function and for functioning with the automatic channel switching function. The parameters of the off are set. The command unit 1 includes a receiving module 11 and a transmitting module 12. The receiving module 11 is configured to receive an enable/disable automatic channel switching command from the user and a setting of parameters related to the automatic channel switching function. The parameters related to the automatic channel switching function may include a first preset time period, a second preset time period, a preset switching period, and a confidence interval. The transmitting module 12 is electrically connected to the processing unit 3 for transmitting the enable/disable automatic channel switching command received by the receiving module 11 and parameters related to the automatic channel switching function to the processing unit 3.

According to an embodiment of the present invention, the receiving module 11 may be a remote controller corresponding to the playback device, and the remote controller is provided with a button for enabling/disabling channel switching and a setting button for setting parameters related to the channel switching function. According to another embodiment of the present invention, the receiving module 11 may be a key for enabling/disabling channel switching provided on the casing of the playback device and a setting key for setting parameters related to the channel switching function (for example, numbers) Key, "+" "-" key, and various arrow keys). The user can enable/disable the channel switching function by enabling/disabling the channel switching key, thereby selecting to automatically switch by the playback device or manually switch the channel by the user. In addition, the user can set parameters such as the first preset time period, the second preset time period, the preset switching period, and the confidence interval through the setting keys of the parameters related to the channel switching function.

Of course, the receiving module 11 and the sending module 12 can be adapted to perform human-computer interaction between the user and the playback device. Although the receiving module 11 and the transmitting module 12 are shown in the same command unit 1 in FIG. 2, the receiving module 11 and the transmitting module 12 may be disposed in different components. For example, when the receiving module 11 is disposed on a remote controller corresponding to the playback device, the transmitting module 12 may be disposed on the playback device for receiving instructions/data from the remote controller. Further, the key for enabling/disabling the channel switching and the setting key for setting the parameter related to the channel switching function are not limited to being set on the remote controller or the playback device housing. These buttons can be in other layouts, for example, distributed on the remote control and the playback device housing. Alternatively, these buttons can also be placed on the set top box.

The time unit 2 is electrically connected to the processing unit 3 for providing the current time and providing the processing unit 3 with the play duration of each channel. While the playback device is playing the program, the time unit 2 provides time information and current channel information, and provides this information to the processing. Unit 3. According to an embodiment of the invention, the time unit 2 is a time chip that can continue to operate after the playback device is powered off (for example, the time unit 2 can be powered by the internal power source of the playback device after the playback device is powered off).

The storage unit 4 is electrically connected to the processing unit 3 for storing parameters related to the automatic channel switching function, and stored in the second preset time period, for each of the plurality of first preset time periods The playing time of the channel and a plurality of favorite channels corresponding to each of the first preset time periods. The storage unit 4 is a memory chip that can continuously store information after the playback device is powered off, such as a flash memory. Of course, in the storage unit 4, the favorite channels corresponding to the respective first preset time periods may not be directly stored, but the percentage of time of each channel in the first preset time period may be stored.

The processing unit 3 is also electrically connected to the playing unit 5 in the playing device, respectively, for setting a favorite channel corresponding to each of the first preset units, and if the automatic channel switching function is enabled, the playing module 5 is played and The favorite channel corresponding to the first preset time period, or the prompt is to be switched to the favorite channel corresponding to the first preset time period.

The processing unit 3 may include a calculation module 31 and a determination module 32 that are electrically connected to each other. The calculation module 31 and the determination module 32 can be electrically connected to the time unit 2 and the storage unit 4, respectively.

The calculating module 31 is configured to calculate, in the second preset time period, a total playing duration of the same channel in each of the first preset time periods, and a total playing time of the multiple channels in the same first preset time period, and The total playback duration and the playback duration are summed to the storage unit 4. By obtaining the total play duration and the play duration from the storage unit 4, the calculation module 31 can calculate, for each of the first preset time periods, a time percentage of the total play duration of each channel and the total play duration of the plurality of channels.

The determining module 32 is configured to set a channel that is within the confidence interval and has the largest percentage of time as the favorite channel corresponding to the first preset time period, and send the storage unit 4 to store the favorite corresponding to the first preset time period. The signal of the channel. The determining module 32 is further configured to determine whether the current time is within a certain first preset time period, or whether the interval between the current time and the start time of the next first preset time period is less than or equal to a preset switching period, and The playback unit 5 transmits a signal for channel switching or a signal for prompting channel switching.

Further, the storage unit 4 and the processing unit 3 may be provided in the playback device, or may be provided in other devices than the playback device, for example, a set top box.

When playing the program by using the playing device, the time unit 2 provides the channel information and the playing duration of the channel to the calculating module 31, and accumulates the playing time of a certain channel for a certain preset time period, that is, calculates the same time. The total playing time of the channel in each of the first preset time periods. When the duration of the second preset time period is reached (for example, one month (t2=30 days)), the calculation module 31 calculates the total playing duration of each channel in each of the first preset time periods and the plurality of channels are in the The sum of the play durations in the same first preset time period, and the percentage of time of the total play duration of each channel and the total play duration of the plurality of channels is calculated. Based on the set confidence interval, the decision module 32 automatically sets the channel that is within the confidence interval and has the largest percentage of time as the setting of the favorite channel corresponding to the first preset time period. After setting various parameters, the user does not need to manually set the favorite channel, which is convenient for the user's use.

The user can press the enable/disable channel switching button in the receiving module 11 to enable the smart channel switching function. The transmitting module 12 transmits a signal enabling the smart channel switching function to the processing unit 3. The current time is obtained according to the time unit 2, and the processing unit 3 calls the favorite channel stored in the storage unit 4 corresponding to the first preset time period, so that the playback device switches to the favorite channel, or prompts that the favorite channel is to be switched.

If there is no favorite channel corresponding to the first preset time period, the playback device continues to play the current program. When the user presses the key to enable/disable channel switching again, the smart channel switching function is disabled.

Further, according to a method of switching a channel of a playback device according to an embodiment of the present invention, a current user of the playback device may be first determined to accordingly set a favorite channel corresponding to the plurality of first time periods for the user.

Accordingly, the playback apparatus according to an embodiment of the present invention may further include an image acquisition unit and an image recognition unit. The image acquisition unit may be electrically connected to the image recognition unit for collecting a face image of the current user of the playback device. The image recognition unit is electrically connected to the determination module of the processing unit for identifying the current user of the playback device based on the face image acquired by the image acquisition unit.

The image acquisition unit can be a face image acquisition sensor, such as a camera. Image The face feature information may be preset in the recognition unit, and the image recognition unit extracts the feature of the face image collected by the face image acquisition sensor, and compares the extracted face image feature with the preset face feature information to Determine the current user of the playback device.

In this embodiment, for a playback device with a camera, before the playback device plays the program and collects the playback duration, the user's face image can be acquired by the camera to determine the current user of the playback device, so that statistics can be performed for different users. Analysis to establish a channel database corresponding to a specific user. Then, when the user operates the playback device again, the user can be identified, and a channel database corresponding to the user is called from the storage unit to perform automatic channel switching.

It should be understood here that the acquisition user acquires the face image of the user to determine that the current user of the playback device does not necessarily perform the step of determining the user after the smart channel switching function is enabled, before the smart channel switching function is enabled.

It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the invention, but the invention is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the invention. These modifications and improvements are also considered to be within the scope of the invention.

Claims

A method for switching a channel of a playback device, comprising the steps of:

Setting a favorite channel corresponding to the plurality of first preset time periods respectively;

Get the current time; and

When the current time is within one of the plurality of first preset time periods, or the current time and the beginning of one of the plurality of first preset time periods When the interval of time is less than or equal to the preset switching period, in a case where the favorite channel corresponding to the one first preset time period is set, the playback device is switched to correspond to the one first preset time period. The favorite channel, or the prompt is to be switched to the favorite channel corresponding to the one first preset time period.
The method of claim 1, wherein the method of setting a favorite channel corresponding to each of the first preset time periods comprises:

Collecting, in a second preset time period, respective playing durations of the plurality of channels in the first preset time period of the playing device;

And summing, in each of the first preset time periods, a total playing duration of each channel, and a sum of playing times of the plurality of channels in the first preset time period;

Calculating, for each of the first preset time periods, a percentage of the total playing time of each channel and the total playing time of the plurality of channels; and

For each of the first preset time periods, the channel that is within the confidence interval and has the largest percentage of time is set as the favorite channel corresponding to the first preset time period.
The method of claim 2 wherein the confidence interval ranges from [90%, 100%].
The method according to claim 1, wherein the first preset time period is less than or equal to the second preset time period, and the duration of the first preset time period is t1, wherein 1 minute ≤ t1 ≤ 1 day, and the The plurality of first preset time periods do not overlap each other, and

The duration of the second preset time period is t2, wherein 1 day ≤ t2 ≤ 1 year.
The method according to claim 1, wherein the preset switching period has a duration of t0, wherein 1 minute ≤ t0 ≤ 10 minutes.
A method according to any one of claims 1 to 5, further comprising the steps of:

Determining a current user of the playback device before setting a favorite channel corresponding to the plurality of first preset time periods; and

For the current user, a favorite channel corresponding to the plurality of first preset time periods is set.
The method according to claim 6, wherein the current time is within one of the plurality of first preset time periods, or the current time and the plurality of first preset time periods In the case where the interval of the start time of one of the first preset time periods is less than or equal to the preset switching period, in the case where the favorite channel corresponding to the one first preset time period is set for the current user, And causing the playback device to switch to the favorite channel corresponding to the one first preset time period, or prompting to switch to the favorite channel corresponding to the one first preset time period.
A playback device includes a command unit, a time unit, a processing unit, and a storage unit, wherein:

The command unit is electrically connected to the processing unit for enabling/disabling the automatic channel switching function and for setting parameters related to the automatic channel switching function,

The time unit is electrically connected to the processing unit for providing the current time and providing the processing unit with the playing time of each channel.

The storage unit is electrically connected to the processing unit for storing parameters related to the automatic channel switching function, and stored in the second preset time period for playing the plurality of channels of each of the plurality of first preset time periods a duration and a favorite channel corresponding to each of the first preset time periods, and

The processing unit is electrically connected to the playing unit in the playing device for setting and each a favorite channel corresponding to the first preset time period, and if the automatic channel switching function is enabled, causing the playing module to play the favorite channel corresponding to the first preset time period, or prompting to switch with the first preset time period Corresponding favorite channel.
The playback apparatus according to claim 8, wherein the processing unit comprises a calculation module and a determination module electrically connected to each other, wherein:

The calculating module is configured to calculate, in the second preset time period, a total playing duration of the same channel in each of the first preset time periods, and a total playing time of the multiple channels in the same first preset time period, And calculating, for each of the first preset time periods, a percentage of time of the total playing duration of each channel and the total playing time of the plurality of channels, and

The determining module is configured to set a channel that is within a confidence interval and has a maximum time percentage as a favorite channel corresponding to the first preset time period, and send, to the storage unit, a favorite channel that stores the first preset time period. a signal, the determining module is further configured to determine whether the current time is within a first preset time period of the plurality of first preset time periods, or determine the current time and the plurality of first preset time periods Whether the interval of the start time of one of the first preset time periods is less than or equal to the preset switching period, and transmitting a signal for channel switching or a signal for prompting channel switching to the playing unit in the playback device.
The playback device of claim 9, wherein the command unit comprises a receiving module and a transmitting module, wherein:

The receiving module is configured to receive an enable/disable automatic channel switching command from the user and a setting of a parameter related to the automatic channel switching function, wherein the parameter includes the plurality of first preset time periods, the first Two preset time periods, the preset switching period, and the confidence interval, and

The sending module is electrically connected to the processing unit for transmitting the enable/disable automatic channel switching command received by the receiving module and the parameter related to the automatic channel switching function to the processing unit.
The playback device according to claim 10, wherein the receiving module is a remote controller corresponding to the playback device, and the remote controller is provided with a button for enabling/disabling channel switching and for setting a channel switching function. Parameter setting key; or

The receiving module is a key for enabling/disabling channel switching and a setting key for setting parameters related to the channel switching function, which are disposed on the casing of the playback device.
A playback apparatus according to any one of claims 8 to 11, further comprising an image acquisition unit and an image recognition unit, wherein:

The image acquisition unit is electrically connected to the image recognition unit for acquiring a face image of the current user of the playback device, and

The image recognition unit and the determination module and the electrical connection of the processing unit are configured to identify the current user of the playback device according to the face image acquired by the image acquisition unit.
The playback device according to claim 12, wherein the image acquisition unit is a face image acquisition sensor, and

The face recognition feature is preset in the image recognition unit, and the image recognition unit extracts the feature of the face image collected by the face image acquisition sensor, and compares the extracted face image feature with the preset face feature information, according to The face image feature matches the face feature information to determine the current user of the playback device.